EP 2041455 A2 20090401 - HYDRAULIC ENERGY RECOVERY SYSTEM
Title (en)
HYDRAULIC ENERGY RECOVERY SYSTEM
Title (de)
HYDRAULISCHES ENERGIERÜCKGEWINNUNGSSYSTEM
Title (fr)
CIRCUIT HYDRAULIQUE DE RECUPERATION D'ENERGIE
Publication
Application
Priority
- FR 2007051574 W 20070702
- FR 0652763 A 20060703
- FR 0653305 A 20060807
Abstract (en)
[origin: WO2008003896A2] The invention relates to a hydraulic energy recovery system. The system includes at least one hydraulic motor (10), two main channels (12, 14) serving as the feed channel or the exhaust channel of said at least one motor, a low-pressure fluid source (16, 52, R) and a high-pressure accumulator (20) forming a high-pressure fluid source. Said system can operate in an energy recovery mode, in which the main feed channel (12) is connected to the low-pressure fluid source (16, 52) and the main exhaust channel (14) is connected to the high-pressure accumulator (20), and an energy release mode, in which the connections are reversed. The low-pressure fluid source comprises a high-flow booster pump (16) which can deliver a sufficient fluid flow in order to supply the at least one hydraulic motor (10) with fluid while said motor is operating at maximum speed in the energy recovery mode and an adjustable pressure limiter (52) which can be controlled in order to vary the pressure of the fluid at the outlet of the low-pressure fluid source.
IPC 8 full level
B60K 6/12 (2006.01); B60W 30/18 (2006.01); F16H 61/40 (2010.01); F16H 61/4026 (2010.01); F16H 61/4043 (2010.01); F16H 61/4061 (2010.01); F16H 61/4139 (2010.01); F16H 61/4157 (2010.01); F16H 61/4096 (2010.01); F16H 61/42 (2010.01); F16H 61/423 (2010.01)
CPC (source: EP US)
B60K 6/12 (2013.01 - EP US); F16H 61/4026 (2013.01 - EP US); F16H 61/4043 (2013.01 - EP US); F16H 61/4061 (2013.01 - EP US); F16H 61/4139 (2013.01 - EP US); F16H 61/4148 (2013.01 - EP US); F16H 61/4157 (2013.01 - EP US); F16H 61/4096 (2013.01 - EP US); F16H 61/423 (2013.01 - EP US); Y02T 10/62 (2013.01 - EP US)
Citation (search report)
See references of WO 2008003896A2
Designated contracting state (EPC)
DE FR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
FR 2903156 A1 20080104; FR 2903156 B1 20110211; EP 2041455 A2 20090401; EP 2041455 B1 20110907; US 2009313985 A1 20091224; US 8240143 B2 20120814; WO 2008003896 A2 20080110; WO 2008003896 A3 20080228
DOCDB simple family (application)
FR 0653305 A 20060807; EP 07823530 A 20070702; FR 2007051574 W 20070702; US 30716707 A 20070702